WO2022169765A1 - Compositions et procédés anticorrosion à structures supramoléculaires - Google Patents

Compositions et procédés anticorrosion à structures supramoléculaires Download PDF

Info

Publication number
WO2022169765A1
WO2022169765A1 PCT/US2022/014751 US2022014751W WO2022169765A1 WO 2022169765 A1 WO2022169765 A1 WO 2022169765A1 US 2022014751 W US2022014751 W US 2022014751W WO 2022169765 A1 WO2022169765 A1 WO 2022169765A1
Authority
WO
WIPO (PCT)
Prior art keywords
composition
supramolecular
chemical
percent
corrosion
Prior art date
Application number
PCT/US2022/014751
Other languages
English (en)
Inventor
Jason L. HURST
Donna Jean SHOTWELL
Robert A. Geiger
Original Assignee
Bps Just Energy Technology, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bps Just Energy Technology, Llc filed Critical Bps Just Energy Technology, Llc
Priority to US18/264,273 priority Critical patent/US20240102176A1/en
Publication of WO2022169765A1 publication Critical patent/WO2022169765A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C23F11/14—Nitrogen-containing compounds
    • C23F11/141—Amines; Quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C23F11/167—Phosphorus-containing compounds
    • C23F11/1673—Esters of phosphoric or thiophosphoric acids

Definitions

  • the present disclosure relates to anticorrosive compositions that include a corrosion inhibitor having supramolecular structures that increase the activity of the corrosion inhibitor, and methods of using the anticorrosive compositions to decrease corrosion rates or the amount of active ingredient needed to prevent corrosion degradation.
  • Corrosion inhibitors have importance as individual inhibitors and as a component in chemical formulations. Corrosion inhibitors are extensively used worldwide in a variety of applications to minimize the rate of corrosion on metal surfaces subjected to any specific environment. With increased and repeated use of corrosion inhibitors, there has been a large concern with sustainability and effectiveness. A wide assortment of active chemical agents are found in these products, and of the currently active chemicals that are utilized in this area, many have been used for hundreds of years.
  • FIG. 1 is a graph comparing the corrosion rates of the 0.1:1 (supramolecular host chemicakcorrosion inhibitor) compositions from Example 1 according to aspects of the present disclosure
  • FIG. 2 is a graph comparing the corrosion rates of the 0.2:1 (supramolecular host chemicakcorrosion inhibitor) compositions from Example 1 according to aspects of the present disclosure
  • FIG. 3 is a graph comparing the corrosion rates of the 0.4:1 (supramolecular host chemicakcorrosion inhibitor) compositions from Example 1 according to aspects of the present disclosure
  • FIG. 4 is a graph showing the average percent reduction in corrosion rates measured for the compositions from Example 1 according to aspects of the present disclosure
  • FIG. 5 is a graph comparing the corrosion rates of the supramolecular host chemicakcorrosion inhibitor compositions from Example 2 at a treatment rate of 25 ppm according to aspects of the present disclosure
  • FIG. 6 is a graph comparing the corrosion rates of the supramolecular host chemicakcorrosion inhibitor compositions from Example 2 at a treatment rate of 100 ppm according to aspects of the present disclosure
  • FIG. 7 is a graph showing the average improvement in corrosion protection of the supramolecular host chemicakcorrosion inhibitor compositions from Example 2 at a treatment rate of 25 ppm according to aspects of the present disclosure.
  • FIG. 8 is a graph showing the average improvement in corrosion protection of the supramolecular host chemicakcorrosion inhibitor compositions from Example 2 at a treatment rate of 100 ppm according to aspects of the present disclosure.
  • anticorrosive compositions that increase efficiency by the formation of supramolecular structures.
  • anticorrosive means, without limitation, used to inhibit or prevent corrosion.
  • different chemistries mixed with supramolecular structures have been found to increase the activity of current and common corrosion inhibitors (also referred to herein as anticorrosive agents), while minimizing the environmental impact by reduction of the amount of raw material required.
  • the anticorrosive compositions include (1) a corrosion inhibitor, such as an anodic corrosion inhibitor, a cathodic corrosion inhibitor, and/or a mixed corrosion inhibitor; (2) a supramolecular host or guest chemical configured to engage in host-guest chemistry with the corrosion inhibitor; and (3) a solvent, such as water, an alcohol, a glycol, or an oil.
  • a corrosion inhibitor such as an anodic corrosion inhibitor, a cathodic corrosion inhibitor, and/or a mixed corrosion inhibitor
  • a supramolecular host or guest chemical configured to engage in host-guest chemistry with the corrosion inhibitor
  • a solvent such as water, an alcohol, a glycol, or an oil.
  • formulation additives such as pH buffers, colorants, adjuvants, stabilizers, or rheology modifiers are included in the anticorrosive composition, and any suitable type and amount of each, in any combination, may be used in the present anticorrosive compositions based on the guidance provided herein.
  • Suitable pH buffers or neutralizers include citric acid, phosphate buffers, sodium hydroxide, and hydrochloric acid. Any kind of dye or pigment may serve as the colorant.
  • Suitable adjuvants include all kinds of surfactants that are used to spread, stick onto, or penetrate different types of surfaces.
  • Suitable rheology modifiers include guar gums, xanthan gum, celluloses, carbomers, and cross-linked polymers. Any kind of additive may be included in the anticorrosive composition, as long as it does not interfere with the action of the anticorrosive agent.
  • the supramolecular host or guest chemical forms supramolecular structures with the anticorrosive agent. Such supramolecular structures or assemblies may take the form of, e.g., micelles, liposomes, nanostructures, or nanobubbles.
  • the corrosion inhibitor in the anticorrosive composition includes an anodic corrosion inhibitor (e.g., a corrosion inhibitor that acts by forming an oxide on a metal surface), a cathodic corrosion inhibitor (e.g., a corrosion inhibitor that acts by slowing the cathodic reaction itself or selectively precipitating on cathodic areas to limit the diffusion of reducing species to the surface), or a mixed corrosion inhibitor (e.g., a corrosion inhibitor that works by reducing both the cathodic and anodic reactions).
  • anodic corrosion inhibitor e.g., a corrosion inhibitor that acts by forming an oxide on a metal surface
  • a cathodic corrosion inhibitor e.g., a corrosion inhibitor that acts by slowing the cathodic reaction itself or selectively precipitating on cathodic areas to limit the diffusion of reducing species to the surface
  • a mixed corrosion inhibitor e.g., a corrosion inhibitor that works by reducing both the cathodic and anodic reactions.
  • corrosion inhibitor or “anticorrosive agent” means (1) a chemical compound that, when added to a fluid (such as a liquid or a gas), decreases the corrosion rate of a material, typically a metal or an alloy, that directly or indirectly comes into contact with the fluid, and/or (2) a chemical compound that, when applied to a surface of a material, decreases the corrosion rate of the material when the material comes into contact with a fluid.
  • the corrosion inhibitors of this disclosure are used to prevent or control the effects of corrosion on a metallic surface.
  • the corrosion inhibitor is present in an amount of about 1 percent to about 90 percent by weight of the anticorrosive composition, for example about 25 percent to about 75 percent by weight of the anticorrosive composition or about 30 percent to about 70 percent by weight of the anticorrosive composition.
  • the host chemical generally has more than one binding site
  • the geometric structure and electronic properties of the host chemical and the guest chemical typically complement each other when at least one host chemical and at least one guest chemical is present
  • the host chemical and the guest chemical generally have a high structural organization, i.e., a repeatable pattern often caused by host and guest compounds aligning and having repeating units or structures.
  • the supramolecular host chemical or supramolecular guest chemical is provided in a mixture with a solvent.
  • a preferred solvent includes an aqueous solvent and non-aqueous solvent.
  • Host chemicals may include a charge, may have magnetic properties, or both. Host chemicals may be soluble or insoluble in the solvent system. If insoluble in the solvent, the particle size of the host chemical is typically greater than 100 nanometers, and the host chemical does not include nanoparticles or nanostructures. Suitable supramolecular host chemicals include cavitands, cryptands, rotaxanes, catenanes, minerals (e.g., clays, silica, or silicates), or any combination thereof.
  • Cavitands are container- shaped molecules that can engage in host-guest chemistry with guest molecules of a complementary shape and size.
  • Examples of cavitands include cyclodextrins, calixarenes, pillarrenes, and cucurbiturils.
  • Calixarenes are cyclic oligomers, which may be obtained by condensation reactions between para-t-butyl phenol and formaldehyde.
  • Cryptands are molecular entities including a cyclic or polycyclic assembly of binding sites that contain three or more binding sites held together by covalent bonds, and that define a molecular cavity in such a way as to bind guest ions.
  • An example of a cryptand is N[CH 2 CH2OCH2CH2OCH 2 CH2]3N or l,10-diaza-4,7,13,16,21,24- hexaoxabicyclo[8.8.8]hexacosane.
  • Cryptands form complexes with many cations, including NH 4 + , lanthanoids, alkali metals, and alkaline earth metals.
  • Rotaxanes are supramolecular structures in which a cyclic molecule is threaded onto an “axle” molecule and end-capped by bulky groups at the terminal of the “axle” molecule.
  • Another way to describe rotaxanes are molecules in which a ring encloses another rod-like molecule having end-groups too large to pass through the ring opening. The rod-like molecule is held in position without covalent bonding.
  • Catenanes are species in which two ring molecules are interlocked with each other, i.e., each ring passes through the center of the other ring.
  • the two cyclic compounds are not covalently linked to one another but cannot be separated unless covalent bond breakage occurs.
  • Suitable supramolecular guest chemicals include cyanuric acid, minerals (e.g., clays, silica, or silicates), water, and melamine, and are preferably selected from cyanuric acid or melamine, or a combination thereof.
  • Guest chemicals may have a charge, may have magnetic properties, or both. Guest chemicals may be soluble or insoluble in the solvent system. If the guest chemical is insoluble in the solvent, the particle size is generally greater than 100 nanometers, and the guest chemical is not in the form of nanoparticles or nanostructures.
  • the supramolecular host chemical or the supramolecular guest chemical is present in the anticorrosive composition in any suitable amount but is generally present in the anticorrosive composition in an amount of about 1 percent to about 90 percent by weight of the anticorrosive composition. In certain embodiments, the supramolecular host chemical or supramolecular guest chemical, or host and guest chemical combination, is present in an amount of about 10 percent to about 80 percent by weight of the anticorrosive composition, for example, 10 percent to about 50 percent by weight of the anticorrosive composition.
  • Any aqueous or non-aqueous solvent may be used, including for example water, an alcohol, a glycol, or an oil.
  • an aqueous solvent is used, and water is used as a preferred aqueous solvent.
  • the solvent is typically present in an amount that is at least sufficient to partially and preferably substantially dissolve any solid components in the anticorrosive composition.
  • Water (or other polar solvent) is present in any suitable amount but is generally present in the anticorrosive composition in an amount of about 0.5 percent to about 80 percent by weight of the composition. In certain embodiments, water is present in an amount of about 5 percent to about 75 percent by weight of the anticorrosive composition, for example, 50 percent to about 70 percent by weight of the anticorrosive composition.
  • the solvent partially dissolves one more components of the anticorrosive composition.
  • the solvent is selected to at least substantially dissolve (e.g., dissolve at least 90%, preferably at least about 95%, and more preferably at least about 99% or 99.9%, of all the components) or completely dissolve all of the components of the anticorrosive composition.
  • the order of addition of the components of the anticorrosive composition can be important to obtain stable supramolecular structures or assemblies in the final mixture.
  • the order of addition is typically: (1) a solvent, (2) any additives, (3) a corrosion inhibitor; and (4) a supramolecular host chemical or a supramolecular guest chemical. Once these components are fully mixed, supramolecular structures can be formed.
  • the anticorrosive compositions can be applied to a surface or added to a fluid in any suitable manner to reduce the rate of corrosion of a metallic surface in contact with the fluid or an intermediate non-metallic surface associated with the fluid.
  • a fluid system is dosed at about 2 parts per million (ppm) to about 200 ppm of the anticorrosive composition, for example at about 10 ppm to about 150 ppm or about 25 ppm to about 100 ppm of the anticorrosive composition.
  • the applied anticorrosive composition inhibits corrosion of a metallic surface or reduces the corrosion rate on a metallic surface for a period of time. For example, the rate of corrosion on one or more metallic coupons may be reduced for a duration of about 30 days.
  • the present anticorrosive compositions may include reduced amounts of corrosion inhibitors to achieve the same or better anticorrosive effects compared to anticorrosive compositions including conventional corrosion inhibitors (including the same corrosion inhibitors described herein) that are free or substantially free of a supramolecular host chemical or a supramolecular guest chemical.
  • conventional corrosion inhibitors including the same corrosion inhibitors described herein
  • the following examples are illustrative of the compositions and methods discussed above and are not intended to be limiting.
  • Example 1 Compositions for 30-Day Corrosion Screening
  • Corrosion rates were measured using a 30-day corrosion screening.
  • Six (6) corrosion inhibitors were tested and formulated into compositions.
  • the six corrosion inhibitors were: (A) didecyl dimethyl ammonium chloride (BTC® 1010-E, commercially available from Stepan Company); (B) triethyl phosphate and cinnamaldehyde mixture (AL600, commercially available from APChem®); (C) benzyl alkyl pyridinyl quaternary ammonium chloride (StarQuatTM BAP 75, commercially available from StarChem®, LLC); (D) an environmentally safe corrosion inhibitor (CorrosX, commercially available from Heartland Energy Group, Ltd.); (E) polyphosphate-quaternary ammonium chloride (StarSurf Phos N95, commercially available from StarChem®, LLC); and (F) polyphosphate-quaternary ammonium chloride (DextrolTM OC110, commercially available from Ashland Inc.).
  • a 4% (w/w) solution was prepared for each corrosion inhibitor utilizing distilled water.
  • the supramolecular host chemical (SymMAXTM supramolecular host or guest water mixture commercially available from Shotwell Hydrogenics, LLC or BPS Shotwell) was then added at a ratio of 0.1:1, 0.2:1, 0.4:1 (w/w) into each 4% solution.
  • Control compositions without the supramolecular host chemical were also prepared giving a total of 36 compositions that were tested.
  • a synthetic salt brine was utilized to accelerate corrosion during the 30-day study by preparing a solution using the composition provided in Table 1 (ASTM DI 14).
  • Corrosion testing was completed by placing a carbon steel coupon that was acquired from VK Enterprises, Inc. into the synthetic brine that was treated at 25 ppm for all solutions. Samples were placed into a laboratory oven at an elevated temperature of 180°C for an elapsed time of 30 days. Once completed, the samples were removed from the oven and coupons were cleaned. The total metal loss was measured by comparing initial weight to final weight of the coupons. All results are provided in Tables 2-4, and the results are illustrated in FIGS. 1-3. TABLE 2: 0.1:1 Ratio 30-DAY CORROSION RATES
  • Corrosion rates were measured using a modified Wheel Test with NACE ID 182 publication as a point of reference for corrosion screening.
  • Three (3) corrosion inhibitors were tested and formulated into compositions. The three corrosion inhibitors were: (G) 75% alkyl pyridine quaternary chloride (ICS APQ, commercially available from Integrated Chemical Services Inc.); (H) diethyl sulfate quaternary imidazoline (ICS-480, commercially available from Integrated Chemical Services Inc.); and (I) 80% coco-benzyl quaternary chloride (ADBAC) (ICS- CBQ, commercially available from Integrated Chemical Services Inc.).
  • ICS APQ alkyl pyridine quaternary chloride
  • ICS-480 diethyl sulfate quaternary imidazoline
  • ADBAC 80% coco-benzyl quaternary chloride
  • compositions G through I A 20% (w/w) solution was prepared for each corrosion inhibitor utilizing compositions G through I with a 1% (w/w) supramolecular host chemical (SymMAXTM supramolecular host or guest water mixture commercially available from Shotwell Hydrogenics, LLC or BPS Shotwell). Control compositions without the supramolecular host chemical were also prepared giving a total of 6 compositions.
  • SymMAXTM supramolecular host or guest water mixture commercially available from Shotwell Hydrogenics, LLC or BPS Shotwell.
  • the standard wheel test method was carried out on the prepared samples. Testing was outsourced to Lightning Corrosion, LLC in Tomball, TX. Using the composition provided in Table 1 (ASTM DI 14), the synthetic salt brine was sparged with carbon dioxide until saturated. Samples were prepared by adding 10 mL of LVT® 200: Hydrotreated Light Distillate (commercially available from Deep South Chemical, Inc.), to 90 mL of brine. The composition samples, prepared in duplicates, were formulated to contain 20% of the corrosion inhibitor base by weight, and were dosed at 25 ppm and 100 ppm respectfully.
  • a pre-weighed 1” X 1/4” 1080 steel corrosion coupon (commercially available through VK Enterprises, Edmond OK) was placed in the solution, and the test samples were placed in an enclosed rotating assembly and heated to 175 °F for 24 hours.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

Des compositions à structures supramoléculaires destinées à être utilisées dans des procédés anticorrosion comprennent un inhibiteur de corrosion ; un produit chimique hôte supramoléculaire ou un produit chimique invité supramoléculaire conçu pour s'impliquer dans une chimie hôte-invité avec l'inhibiteur de corrosion ; et un solvant. Des procédés d'inhibition de la corrosion sur une surface, ou de réduction de la quantité de composition anticorrosion dans un système, comprennent l'addition au système d'une quantité anticorrosion efficace de la composition.
PCT/US2022/014751 2021-02-04 2022-02-01 Compositions et procédés anticorrosion à structures supramoléculaires WO2022169765A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US18/264,273 US20240102176A1 (en) 2021-02-04 2022-02-01 Anticorrosive compositions and methods with supramolecular structures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202163145818P 2021-02-04 2021-02-04
US63/145,818 2021-02-04

Publications (1)

Publication Number Publication Date
WO2022169765A1 true WO2022169765A1 (fr) 2022-08-11

Family

ID=82741622

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2022/014751 WO2022169765A1 (fr) 2021-02-04 2022-02-01 Compositions et procédés anticorrosion à structures supramoléculaires

Country Status (1)

Country Link
WO (1) WO2022169765A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6075072A (en) * 1998-03-13 2000-06-13 3M Innovative Properties Company Latent coating for metal surface repair
US20120114523A1 (en) * 2009-07-03 2012-05-10 Akzo Nobel Chemicals International B.V. Polymeric corrosion inhibitors
US20130130961A1 (en) * 2009-03-13 2013-05-23 Green Source Energy Llc Inhibiting corrosion and scaling of surfaces contacted by sulfur-containing materials
CN103305851B (zh) * 2013-06-21 2015-11-18 西南石油大学 一种超分子复合缓蚀剂及制备方法
US20180087162A1 (en) * 2016-09-23 2018-03-29 The Boeing Company Corrosion resistant surface treatment and primer system for aluminum aircraft using chromium-free inhibitors
CN106337187B (zh) * 2016-08-25 2018-10-12 南京理工大学 一种酸/碱双刺激响应型纳米容器及其制备方法
CN107059015B (zh) * 2017-02-03 2019-11-19 北京工商大学 一种用于保护凝结水管线钢的气液双效超分子缓蚀剂及其制备方法
WO2021168016A1 (fr) * 2020-02-18 2021-08-26 Bps Just Energy Technology, Llc Compositions pesticides à structures supramoléculaires à usage agricole

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6075072A (en) * 1998-03-13 2000-06-13 3M Innovative Properties Company Latent coating for metal surface repair
US20130130961A1 (en) * 2009-03-13 2013-05-23 Green Source Energy Llc Inhibiting corrosion and scaling of surfaces contacted by sulfur-containing materials
US20120114523A1 (en) * 2009-07-03 2012-05-10 Akzo Nobel Chemicals International B.V. Polymeric corrosion inhibitors
CN103305851B (zh) * 2013-06-21 2015-11-18 西南石油大学 一种超分子复合缓蚀剂及制备方法
CN106337187B (zh) * 2016-08-25 2018-10-12 南京理工大学 一种酸/碱双刺激响应型纳米容器及其制备方法
US20180087162A1 (en) * 2016-09-23 2018-03-29 The Boeing Company Corrosion resistant surface treatment and primer system for aluminum aircraft using chromium-free inhibitors
CN107059015B (zh) * 2017-02-03 2019-11-19 北京工商大学 一种用于保护凝结水管线钢的气液双效超分子缓蚀剂及其制备方法
WO2021168016A1 (fr) * 2020-02-18 2021-08-26 Bps Just Energy Technology, Llc Compositions pesticides à structures supramoléculaires à usage agricole

Similar Documents

Publication Publication Date Title
EP0538970B1 (fr) Inhibition de la corrosion à l'aide de chélates de terres rares solubles dans l'eau
RU2439197C9 (ru) Способ антикоррозионной обработки чистых непокрытых металлических поверхностей (варианты) и кислый, не содержащий хром водный раствор для обработки упомянутых поверхностей
US20060264335A1 (en) Corrosion inhibitor intensifier and method of using the same
BRPI0616003B1 (pt) Composição e método para o condicionamento de superfície e método para a produção de uma composição para o condicionamento de superfície
EP2823001B1 (fr) Revêtements en phase aqueuse, compositions et leurs procédés conférant une protection anticorrosion améliorée
A Negm et al. Impact of synthesized and natural compounds in corrosion inhibition of carbon steel and aluminium in acidic media
EP3124582B1 (fr) Agent de revêtement lubrifiant aqueux ayant une excellente résistance à la corrosion et une excellente maniabilité, et matériau métallique
CN105039996A (zh) 一种用于防止黄铜制品腐蚀的缓蚀剂
Morocco Sodium tripolyphosphate (STPP) as a novel corrosion inhibitor for mild steel in 1 M HCl
US20200040465A1 (en) Methods for inhibiting corrosion
US20240102176A1 (en) Anticorrosive compositions and methods with supramolecular structures
JP2008513563A (ja) アミノホスフィネートポリマー
US3787319A (en) Amine/phosphate composition useful as corrosion and scale inhibitor
WO2022251449A1 (fr) Compositions et procédés inhibiteurs de tartre avec structures supramoléculaires
WO2022169765A1 (fr) Compositions et procédés anticorrosion à structures supramoléculaires
Kalendova Comparison of the anticorrosion efficiencies of pigments based on condensed phosphates and polyphosphosilicates
WO2007054536A1 (fr) Inhibition de la corrosion
Vennila et al. Synergism between sodium molybdate and binary inhibitor (BHI+ Zn2+) on corrosion inhibition of mild steel in aqueous medium containing 60 ppm Cl− ion
AU2016245834B2 (en) Process for inhibiting the corrosion of metal surfaces
JP6370653B2 (ja) 腐食抑制剤組成物および洗浄液組成物
JP2994428B2 (ja) 燐酸塩皮膜処理用の組成物及び処理方法
CA1159246A (fr) Produits anticorrosion
RU2430997C2 (ru) Ингибитор коррозии
BR112021012507A2 (pt) Composição aquosa acídica para fosfatizar superfícies metálicas, método para fosfatizar superfícies metálicas, método para produzir uma composição, e, uso de um revestimento de fosfato
Vashi et al. Hexamine as Corrosion Inhibitors forZinc in Phosphoric Acid

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22750253

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 18264273

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22750253

Country of ref document: EP

Kind code of ref document: A1